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प्रश्न
Name the gas that is produced in the given cases :
An action of dilute hydrochloride acid on sodium sulphide.
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उत्तर
`H_2S`
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संबंधित प्रश्न
State one relevant observation for given reactions:
Action of dilute Hydrochloric acid on iron (II) sulfide.
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
The acid on mixing with silver nitrate solution produces a white precipitate which is soluble in excess ammonium hydroxide
State your observation When moist starch iodide paper is introduced into chlorine gas.
Write an equation for the reaction of hydrochloric acid on copper oxide.
What would happen if
Calcium oxide is used to dry hydrogen chloride.
What is the property of concentrated sulphuric acid (H2SO4) which allows it to be used in the preparation of hydrogen chloride (HCl) and nitric acid (HNO3)?
Write a fully balanced of the following case :
Red lead is warmed with concentrated hydrochloric acid.
Match the following:
| Column A | Column B |
| 1. A substance that turns moist starch iodide paper blue. | A. Ammonium sulphate |
| 2. A compound which release a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings. | B. Lead carbonate |
| 3. A solution of this compound gives dirty green precipitate with sodium hydroxide. | C. Chlorine |
| 4. A compound which on heating with sodium hydroxide produces a gas which forms dense white fumes with hydrogen chloride. | D. Copper nitrate |
| 5. A white solid which gives a yellow residue on heating | E. Ferrous sulphate |
A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution :
| S.NO. | Substances added | Gas evolved | Odour |
| 1. | Calcium carbonate | ______ | ______ |
| 2. | Magnesium ribbon | ______ | ______ |
| 3. | Manganese (IV) oxide with heating | ______ | ______ |
| 4. | Sodium sulphide | ______ | ______ |
Complete the table by writing the gas evolved in each case and its odour.
